Toy.



T. SEKIKAWA.

TOY.

APPLICATION FILED JULY 29,1909.

Patented Oct. 24, 1911.

wzZrzeaaeax COLUMBIA PLANOGRAI'N co., WASHINGTON, n. c.

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TSUNESUKE SEKIKAWA, OF HOKKAIDO, JAPAN.

TOY.

Specification of Letters Patent.

Patented Oct. 24:, 1911.

Application filed July 29, 1909. Serial No. 510,203.

To all whom it may concern:

Be it known that I, TSUNESUKE SEKI- KAWA, a subject of the Emperor of Japan, residing at No. 18 Ubagami-Cho, Ezashi- Machi, I-IiyamaGun, Hokkaido, Japan, have invented certain new and useful Improvements in Toys, of which the following is a specification.

My invention relates broadly to toys, and has particular reference to a diving toy, which will automatically raise and lower itself in water.

In carrying out the invention, I provide a gas-collecting casing, within which is mounted a gas-generator, together with a valve to control the discharge of gas from said casing.

The object of this invention is to provide a device of the above character, which is simple in construction, cheap to manufacture, and interesting in its operation.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same; Figure 1 is a central vertical section through the device; Fig. 2 is a central horizontal section through the same; and Fig. 3 is a side elevation of a modified form of the invention.

In the drawings, wherein is illustrated a preferred embodiment of the invention, the numeral 1 designates a gas-collecting casing, having preferably substantially the shape of an egg, and tapering toward its upper extremity, so as to facilitate the movement of the device through the water when rising. Disposed axially within this casing, is a gas-generator, comprising an approximately cylindrical casing 1, connected with the casing 1 by means of strips 2,

as shown. The cylindrical casing 1 has its ends closed by means of heads 3, provided with openings 6 and 7 formed therethrough. The larger lower end of the gas-collecting casing 1 is formed open, as shown, while the smaller upper end thereof is formed closed, except for a relatively small opening 1 This opening 4* is controlled by a valve device, which operates to close the said opening by buoyancy as soon as the casing 1 descends below the surface of the water, said valve device consisting of part 5 which closes the opening 45, a valve stem 8, and a float portion 9 which is secured to the upper end of said valve stem 8, the said float portion projecting outside of the casing 1. The gas-generator is filled with a gas-generating compound, as shown at 10, which may be a suitable material capable of generating gases when water penetrates thereto, as for instance a mixture of tartaric acid or citric acid and bicarbonate of soda.

In the modified form of the invention illustrated in Fig. 3, the parts of the same are like corresponding parts in Figs. 1 and 2, except that valve 5 is dispensed with, and a larger valve 5 is employed, having connection with a long valve-stem 11, to the upper end of which is secured a float 12, having preferably the shape of a bird, as shown.

In the use of the toy, the same is placed in a suitable receptacle containing water, whereby the water passes through the lower open end of the casing 1, to penetrate the same. The casing 1 is formed of such material as will cause the device to sink when said casing is filled with water. The buoyancy of the fioat portion 9 of the valve raises the valve device, so that part 5 closes opening 43. l/Vater then passes through opening 7 into the casing 1 and coming then in contact with the chemical mixture above described, causes the generation of gases. These gases escape through the opening 6 and are collected in the upper portion of the casing 1, forcing the water downwardly out of the gas-collecting casing. When a sufficient amount of these gases has displaced the water, the device will rise, and continue such movement until the float portion 9 of the valve device reaches the surface of the water, when part 5 of the valve device will be unseated. This unseating of valve 5 permits of the escape of the gases and also refills the casing 1 with water, whereby the device again sinks to the bottom. The operation is thus repeated until the chemicals have been exhausted.

In view of the above referred to operation of parts, the operation of the modified form, as shown in Fig. 3, is deemed obvious and will not be recited.

I claim:

1. In a device of the character described, a gas collecting casing, a gas generator having communication therewith, said gas collecting casing having a gas escape opening, and a valve to control said opening, said valve being adapted to close the opening by buoyancy when the said casing descends below the surface of water.

2. In a device of the character described, a gas collecting casing, a gas generator having communication therewith, said gas collecting casing having a gas escape opening, and a valve device to control said opening, said valve device being provided with a portion projecting outside of said casing adapted to operate the valve device by buoyancy to close said opening when the said casing descends below the surface of water.

3. In a device of the character described, a gas collecting casing, said casing tapering in shape toward the upper extremity thereof, a gas generator having communication therewith, said gas collecting casing having a gas escape opening, and a valve to control said opening, said valve being adapted to close the opening by buoyancy when the said casing descends below the surface of water.

i. In a device of the character described, a gas collecting casing, having its lower end open, a gas generator casing having its upper portion disposed within said gas collecting casing to deliver gas to the upper portion thereof, the said gas generator casing extending downwardly below and outwardly of the first-named casing, said gas collecting casing being provided with a gas escape opening, and a valve to control said opening, said valve being adapted to close the opening by buoyancy when the said casing descends below the surface of water.

5. I11 a device of the character described, a gas collecting casing, having its lower end open, said casing being provided with a gas escape opening at its upper end, the casing tapering in shape toward said upper end, a gas generator casing having its upper portion disposed within said gas collecting casing to deliver gas to the upper portion thereof, said gas generator casing extending downwardly below and outwardly of the first-named casing, and a valve device to control said gas escape opening, said valve device having a portion projecting outside of said gas collecting casing, said portion being adapted to operate the valve device by buoyancy to close said opening when the said casing descends below the surface of water.

6. In a device of the character described, a gas collecting casing formed open at its lower portion and having a gas discharge opening in its upper portion, a gas generator casing disposed within said gas collecting casing, and a valve device to control said gas discharge opening, said valve device being provided with means disposed outwardly of and above said gas collecting casing to operate the valve device by buoyancy to close said gas discharge opening when the said casing descends below the surface of water.

7. In a device of the character described,

a gas collecting casing, a gas generator casing suspended within said gas collecting casing and adapted to deliver gas thereto, said gas collecting casing being formed with an opening in its lower portion entirely surrounding said gas generator casing and being provided with an opening in its upper portion, and a valve to control said lastnamed opening, said valve being provided with means adapted to close the said opening by buoyancy when the said casing descends below the surface of water.

8. In a device of the character described, a gas collecting casing, a gas generator casing suspended within said gas collecting casing and adapted to deliver gas thereto, said gas collecting casing being formed with an opening in its lower portion entirely surrounding said gas generator casing and being provided with an opening in its upper port-ion, said casing tapering in shape to ward its upper portion, and a valve device to control said opening, said valve device being provided with means disposed outwardly of and above said gas collecting casing adapted to operate the valve device by buoyancy to close said last-named opening when the said gas collecting casing descends below the surface of water.

9. In a device of the character described, a gas generator casing provided with an opening in its lower end for the admission of water to the interior of said casing and further provided with an opening at its a valve to control said last-named opening,

said valve being adapted to close the opening by buoyancy when the gas collecting casing descends below the surface of water.

10. In a device of the character described, a gas generator casing provided with an opening in its lower end for the admission of water to the interior of said casing and further provided with an opening at its opposite end for the discharge of gas therefrom, a gas collecting casing surrounding said first-named casing being open at its lower portion and having an opening at its upper end for the discharge of gas, said gas collecting casing being approximately egg shaped and tapering toward its upper end, and a valve device to control said lastnamed opening, said valve device being provided with means disposed outwardly of and above said gas collecting casing, said means being adapted to operate the valve device by buoyancy to close said last-named open ing when the gas collecting casing descends below the surface of water.

11. In a device of the character described, a substantially cylindrical casing containing a chemical adapted to generate gas upon contact with water, said casing being provided with an opening in its lower end for the admission of water to the interior of said ,casing and further provided with an opening at its-opposite end for the discharge of gas therefrom, a gas collecting casing surrounding said first-named casing having an opening in its lower portion through which said first-named casing passes, means for suspending said first-named casing in said gas collecting casing, said gas collecting casing being further provided with an opening in its upper portion for the discharge of gas, and a valve to control said last-named opening, said valve being adapted to close the opening by buoyancy when the said casing descends below the surface of water.

12. In a device of the character described, a gas collecting casing having an opening in its lower portion and being provided with an opening at its upper end for the discharge of gas, a substantially cylindrical casing having its upper port-ion disposed within said gas collecting casing to deliver gas to the upper portion thereof and extending downwardly below and outwardly of said gas collecting casing, said cylindrical casing containing a chemical adapted to generate gas vupon contact with water and being provided with an opening in its lower end for the admission of water to the interior of said casing and further provided with an opening at its opposite end for the discharge of gas therefrom, said cylindrical casing passing through the opening in the lower portion of said gas collecting casing, means for suspending said cylindrical casing in said gas collecting casing, the latter tapering in shape toward the upper end thereof, and a valve device to control the opening at the upper end of said gas collecting casing, said valve device being provided with means disposed outwardly of and above said gas collecting casing adapted to operate the valve device by buoyancy to close said opening when the gas collecting casing descends below the surface of water.

In testimony whereof I aflix my signature in presence of two witnesses.

TSUNESUKE SEKIKAWA. Witnesses:

Y. FUKUKITA, UHACHI TOHIWARA.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

